Ovary development of the deep-water shrimp Aristaeomorpha foliacea (Risso,1826) (Crustacea : Decapoda : Aristeidae) from Taiwan

Aristaeomorpha foliacea (Risso, 1826) is a commercially harvested deep-wate r shrimp in Taiwan. Considerable changes in the color and shape of the ovar y occur during the maturation of this species. According to the relationshi ps among the general appearance of the ovary, histology of ovarian tissues and gonadosomatic index, 4 distinct stages of ovarian development can be de fined. The final stage, a ripe ovary is pale black and clearly visible thro ugh the carapace, and it can be a reliable guide for judging of stage of ma turation. There is evidence that development of the ovary is induced by cop ulation. The arrangement of developing oocytes in a rouleau formation is un ique for this species among shrimp.